• Festus Mogae, Botswana's third president, has passed away at age 86.
• He is remembered for his leadership and significant contributions to HIV/AIDS treatment.
• The government has declared three days of national mourning.
• Mogae served from 1998 to 2008, ensuring economic stability during his tenure.

Botswana's former president Festus Mogae has died at the age of 86, as announced by the current President Duma Boko. The government has officially declared three days of national mourning, a time for the nation to honor a leader widely recognized for his contributions to both governance and public health, particularly in the fight against HIV/AIDS, when Botswana had one of the world's highest infection rates, according to BBC and Reuters.

Mogae served as Botswana's third president from 1998 to 2008 and was lauded for promoting robust economic growth and democratic governance during his time in office. His leadership was marked by a peaceful transfer of power to his vice president, Ian Khama, a smooth transition that underscored Botswana's reputation for political stability, according to Africanews and Al Jazeera.

Born on August 21, 1939, in Serowe, Mogae played key roles in Botswana's government before becoming president, including positions as finance minister and vice president. He is credited with implementing one of Africa's most comprehensive programs to tackle HIV/AIDS, significantly improving public health outcomes in the nation, according to Reuters and BBC.

In recognition of his esteemed leadership, Mogae was awarded the prestigious Ibrahim Prize for Achievement in African Leadership in 2008, a testament to his efforts in governance and stabilization in Botswana, according to Africanews and Al Jazeera.